GREENBRAE -- Marin General Hospital said it received an anonymous $4 million gift that will go toward radiation and oncology department.

The gift, according to officials at the 235-bed hospital, is from "a grateful patient," who wishes to not be named. The gift underscores the importance of Measure F, a $394 million general obligation bond that the hospital is seeking to help fund a rebuild in order to make the facility seismically safe, they said.

“This spectacularly generous gift is not only a testament to the value this patient has placed on having leading-edge cancer treatments available right here in this county, but is also a ringing endorsement of the importance of Measure F, which will allow us to continue to provide vital services such as comprehensive cancer treatment and trauma care in Marin County,” Chief Executive Officer Lee Domanico said in a statement.

Measure F will be on the Nov. 5, ballot. Funds from the bonds will cover a significant portion of the rebuild, expected to cost $5oo million. Improvements will be made to vital areas of care such as the emergency department, intensive care and critical care units, and patient and nursing areas.  It will also provide new technologies for treating trauma, heart disease, stroke, cancer and other diseases.

The hospital is also counting on significant philanthropic support to help finance the rebuilding, according to Robert Dureault, executive director of the Marin General Hospital Foundation.

“This is not only a gift that will have a positive and lifesaving impact on the many people in our community who are touched by cancer sometime in their lives, but it is also proof that the donor community is ready and willing to do their part to support the hospital to ensure that Marin County continues to have access to trauma care and other vital health care services in the future," Mr. Dureault said.